Loading external swf and controling from the main file issue

Hi,

Please find the attached file.

I am loading a swf named ball.swf in the main.fla. the swf is loading but not playing the next frame that i want.

I wrote this way:–

import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.MouseEvent;
import flash.display.MovieClip;

var swfLoad:Loader= new Loader();
var urlReq:URLRequest = new URLRequest(“ball.swf”);

//addChild(swfLoad);

swfLoad.load(urlReq);

movie_loader.addChild(swfLoad);

//trace(movie_loader)

////////////////////////////////////////////

b1Btn.addEventListener(MouseEvent.CLICK, playSwf);

function playSwf(e:MouseEvent)
{
trace(“btn Clicked”);
MovieClip(this.parent.parent).movie_loader.main.gotoAndPlay(“start”);
}

Please help…

Thanks